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EP 4 487 545 A1

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(43) Date of publication: 08.01.2025 Bulletin 2025/02 (21) Application number: 22851106.9 (22) Date of filing: 12.12.2022

(51) International Patent Classification (IPC):  H04L 45/18(2022.01) H04L 45/50(2022.01) H04L 45/655(2022.01) H04L 45/00(2022.01) H04L 45/64(2022.01) H04L 45/76(2022.01) (52) Cooperative Patent Classification (CPC): H04L 45/76; H04L 45/22; H04L 45/64; H04L 45/18; H04L 45/50; H04L 45/655 (86) International application number: PCT/US2022/052484 (87) International publication number: WO 2023/163784 (31.08.2023 Gazette 2023/35)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 28.02.2022 US 202263315048 P 28.05.2022 US 202217827675 (71) Applicant: Microsoft Technology Licensing, LLC Redmond, WA 98052-6399 (US)	(72) Inventors: KRISHNASWAMY, Umesh Redmond, Washington 98052-6399 (US) SINGH, Rachee Redmond, Washington 98052-6399 (US) BJORNER, Nikolaj Redmond, Washington 98052-6399 (US) RAJ, Himanshu Redmond, Washington 98052-6399 (US) (74) Representative: Grünecker Patent- und Rechtsanwälte PartG mbB  Leopoldstraße 4 80802 München 80802 München (DE)